VIN Number Tire Size (if different than stock) Auto or Manual Trans

Please specify the tune(s) you are looking for; most common tunes are:

0hp Stock Power

25hp Tow

45hp Economy

75hp Street

90hp performance

120hp Race

credits needed

01-04 Silverado 6.6 Duramax (Diesel) (LB7) 2

04.5-06 Silverado 6.6 Duramax (Diesel) (LLY) 2

06-07 Silverado 6.6 Duramax (Diesel) (LBZ) 2

07.5-10 Silverado 6.6 Duramax (Diesel) (LMM) 2

11-16 Silverado 6.6 Duramax (Diesel) (LML) tdn 2